Take-up mechanism



June l, 1965 J. M. BUDzYNA 3,186,443 V TAKE-UP MECHANISM Filed may 1v,196s @iol T I -E ATTORNEY United States Patent O 3,186,443 TAKE UPMECHANISM Joseph M. Budzyna, East Douglas, Mass., assignor to DraperCorporation, Hopedale, Mass., a corporation of Maine Filed May 17, 1963,Ser. No. 281,151 2 Claims. (Cl. 139-291) This invention relates to loomsfor weaving and, more particularly, to a means of controlling fabric asit is wound on the take-up cloth roll.

It is a general object of the invention to provide a means wherebyfabric as woven will be taken up by the cloth roll free of creases andwrapped more tightly thereon than has been heretofore possible.

It is a further and more specific object of the inven tion to provide ameans adapted to cooperate with the fabric which in addition to thefirst-mentioned object will maintain the increasing roll of fabric at auniform diameter for its entire width on the cloth roll.

Further objects and advantages of the invention will become apparentfrom the following more detailed description.

The taking up of fabric on a loom cloth roll has in the past been theobject of many complaints from the manufacturers of fabric. It has oftenbeen difficult to take up and to wind fabric on a loom cloth rollwithout its becoming wrinkled or creased, that being something whichdetracts from the appearance and general desirability of the fabric asit comes from the loom. Fabric of this nature often becomes a fabric ofinferior quality, for if it is dyed during the iinishing thereof,discolored streaks will appear as a result of the creases which wereformed while being taken up by the cloth roll.

The cause of this undesirable condition can be attributed to the windingup of an uneven roll of fabric, that is, the ends or selvage portions ofthe fabric have a tendency to increase more rapidly in diameter than thefabric therebetween as said fabric is taken up by the cloth roll. Thisroll of fabric not being of a uniform diameter as it is taken upintroduces wrinkles and as the winding continues, these wrinkles arewrapped into the roll of fabric and show up as creases when said fabricis removed from the loom.

According to the instant invention it is now possible to eliminate theseundesirable wrinkles and creases in fabric by maintaining the diameterof the roll of fabric uniform for its entire width. To accomplish thisapplicant utilizes a spring biased presser roll which is adapted tocooperate with the fabric as it is received by the cloth roll. Thetension under which the presser roll is caused to function may beincreased or decreased to meet the specific requirements of a particularfabric. This presser roll bearing against the fabric as it is beingwound onto the cloth roll maintains the increasing roll of fabric at auniform diameter for its entire width during the complete wind-upprocess, thereby eliminating wrinkles and the formation of creases insaid fabric.

The invention may be more completely understood by reference to theaccompanying description and gures of drawing, wherein:

FIG. 1 is a view of part of the front of a loom as seen looking from therear thereof showing the mechanism according to the invention appliedthereto;

FIG. 2 is a view as seen looking from the front of a loom showing partof the lower portion thereof and the means for varying the tension underwhich the presser roll is caused to function;

FIG. 3 is a detailed view in front elevation of a modified form ofpresser roll which may be utilized; and

FIG. 4 is a view in side elevation of the mechanism according to theinvention shown in FIG. 1.

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Now referring to the figures of drawing, enough of a loom is shown inFIG. 1 to serve as a basis for a detailed description of the invention.

A loom of more or less conventional design includes loomsides 1i) and11, a breast beam 12, bottom or front girt 13, a guide roll 13', atake-up roll 14, and wind-up or cloth roll 15.

The ends of the cloth roll 15 are journaled in bearing members 16 and 17which are supported by cloth roll stands 18 and 19, respectively.

The base portion of these cloth roll stands are attached to the uppersurface of the front girt 13 adjacent the loomsides 10 and 11. Thestands extend in a generally upward direction and position the clothroll approximately midway between the breast beam 12 and the front girt13.

The fabric 2l) is guided as shown in FIG. 1 over the take-up roll 14 andthence downwardly to the cloth roll 15 on which it is wound in a mannerwell known to those familiar with the art.

The mechanism according to the invention includes a presser roll 21disposed rearwardly of and in general alignment with the cloth roll 15.

A horizontally disposed shaft 22 positioned in close proximity with thefront girt 13 and extending parallel therewith is supported byrearwardly extending bearing members 23 and 24 which are attached to theupper surface of said girt by means of bolts 25 and 26, respectively.

Outwardly from bearing members 25 and 26 and adjacent the ends of shaft22 there are provided ixedly positioned arms 27 and 28. These armsextend in a generally upward direction and are adapted to support attheir upper extremities the ends of the presser roll 21 which extendstherebetween.

A supporting bracket generally indicated by numeral 29 which is shapedin the form of an inverted U (FIGS. 1 and 2) is attached to the centralportion of the front girt 13 and is directed rearwardly therefrom.

The leg portions 30 and 31 of this supporting bracket 29 are providedwith aligned apertures in which the extended hubs 32 and 33 of a Wormwheel 34 are journaled.

The worm Wheel and its extended hub portions are axially bored for thereception of shaft 22 which extends outwardly from either side thereofand is freely turnable therein.

The extended hubs 32 and 33 protrude outwardly beyond the legs 30 and 31of the supporting bracket 29 and are provided at each end withintegrally formed lugs 35 and 36.

A wind-up or torsion type spring 37 is assembled on shaft 22 immediatelyadjacent to hub extension 32. The ends -of the spring 37 are reverselybent forming hooks 38 and 39 (FIGS. 1 and 2) which are adapted to retainsaid spring under the desired amount of tension during loom operation.Hook 39 is adapted partially to encircle the lug 35 situated on theouter end of the extended hub 32. Hook 33 partially encircles a similarlug 40 which is integrally formed on the outer periphery of a collarmember 41. This collar member 41 is iixedly positioned on shaft 22 andis spaced from the extended hub 32 a distance sufficient to permit thespring 37 to be positioned therebetween.

Although only one spring 37 is shown in FIG. l, it is to be understoodthat a second such spring may be utilized on the opposite side of thesupporting bracket 29 and would simply require a second collar 41 inaddition to a second spring.

The upper surface of the supporting bracket 29 is provided with acenrtally disposed rectangular opening 42 (FIG. 2) which is adapted toreceive therein a worm gear 43. The front and rear portions of bracket29 which ce es form the ends of opening 42 are slightly enlarged asshown in FIGS. 1 and 2 and are provided with aligned apertures throughwhich' a-worm shaft 44 is caused to pass. This worm shaft 44 supportsthe worm gear 43 in the opening 42 and in meshing relationship with theworm wheel 34. The forward end of shaft 44 extends toward the front ofthe loom and slightly beyond the front girt 13 and is supported adjacentthe forward end thereof by means of a pillow block type of bearing 45which is attached to -said front girt by means of bolts 46 and 47.Approximately midway between the free forward end of shaft 44 and thebearing 45, said shaft is provided with a pin 48 which assembles theretoat a right angle to the axis of said shaft. This pin 48 provides a meanswhereby shaft 44 may be turned in one direction or the other by simplyslipping a slotted type crank handle (not shown) over the forward end ofsaid shaft.

FIG. 3 shows a modified form of presser roll indicated generally `bynumeral 49 which may be utilized. This type of roll is threaded frompoints adjacent the center thereof outwardly to its ends. These threadedportions being in pressing contact with the fabric are effective to urgeand smooth the fabric outwardly from its center portion as it is takenup by the cloth roll.

In operation, the movement of turning shaft 44 is transmitted to wormwheel 34 and its extended hubs 32 and 33 via the worm gear 43 which isiixedly assembled on said shaft 44.

The rotary movement of the extended hub 32 causes the spring 3'7attached thereto to rbe wound up or unwound as desired. The opposite endof this spring being attached to collar 41 which is fixedly positionedon shaft l22 causes the torsional tension under which the spring is heldto be transmitted to said shaft. The tendency of -shaft 22 to unwindurges arms 27 and 28, which extend in a generally upright direction, toswing toward the front of the loom and the presser roll 21 beingsupported between and on the upper ends of said arms is pressed intocontact with the fabric as said fabric is received -onto the cloth roll.

This pressure applied to the fabric for its entire width as it isreceived by the cloth roll maintains the diameter of the roll of fabricuniform and does not permit the selvage portions thereof to build up andtelescope inwardly to form wrinkles which would be subsequently ironedin as creases as the roll of fabric increased in size.

By keeping the roll of fabric uniform in diameter, the pressure appliedthereto by the presser roll iniinences the fabric in such a manner thatit is wound more tightly on the cloth roll. A more tightly wound roll offabric is favored by Weavers for a substantial amount of additionalfabric can be wound on a cloth roll before it is doffed.

While one embodiment and a modification of the invention have beendisclosed, it is to be understood that the inventive concept may becarried out in a number of Ways. This invention is, therefore, not to belimited to the precise details described, but is intended to embrace allvariations and modifications thereof falling within the spirit of theinvention and thescope of the claims.

I claim:

1. In a loom the combination of a fabric take-up roll and a cloth rollon which fabric is adapted to be wound, a presser roll adapted tocooperate with said cloth roll as the fabric is received thereoncomprising supporting arms and a horizontally disposed shaft member towhich said supporting arms are fiXedly attached, adjustable spring meansfor subjecting said shaft to torsional tension whereby `said presserroll is continually urged into pressing contact With the fabric as it isreceived by said cloth roll.

2. in a loom the combination of a fabric take-up roll and a cloth rollon which fabric is adapted to be wound, a presser roll adapted tocooperate with said cloth roll as the fabric is received thereoncomprising supporting varms and a horizontally disposed shaft member towhich said supporting arms are fixedly attached, adjustable spring meansfor subjecting said shaft to torsional tension whereby .said presserroll is continually urged into pressing contact with the fabric as it isreceived by said cloth roll,

said adjustable spring means including a selectively rotatable worm gearin meshing relationship with a centrally disposed worm wheel on saidshaft, a vtorsion spring encircling said shaft having one end fixedthereto and its opposite end fixed to said worm wheel.

References Cited by the Examiner UNITED STATES PATENTS 236,068 12/ 80Newcomb 26-63 650,717 5/00 Goodline 139-291 691,088 l/02 Wackerhagan139-291 751,192 2/04 Meding 139-291 1,649,612 11/27 Moore et a1. 139-2912,519,424 8/50 Bahan 139-308 2,638,939 5/53 Picanol 139-308 FOREIGNPATENTS 1,098,457 1/ 61 Germany.

DONALD W. PARKER, Primary Examiner.`

1. IN A LOOM THE COMBINATION OF A FABRIC TAKE-UP ROLL AND A CLOTH ROLLON WHICH FABRIC IS ADAPTED TO BE WOUND, A PRESSOR ROLL ADAPTED TOCOOPERATE WITH SAID COLTH ROLL AS THE FABRIC IS RECEIVED THEREONCOMPRISING SUPPORTING ARMS AND A HORIZONTALLY DISPOSED SHAFT MEMBER TOWHICH SAID SUPPORTING ARMS ARE FIXEDLY ATTACHED, ADJUSTABLE SPRING MEANSFOR SUBJECTING SAID SHAFT TO TORSIONAL TENSION WHEREBY SAID PRESSOR ROLLIN CONTINUALLY URGED INTO PRESSING CONTACT WITH THE FABRIC AS IT ISRECEIVED BY SAID CLOTH ROLL.